﻿String.prototype.toDate = function(x, p) { 
 if(x == null) x = "-"; 
 if(p == null) p = "ymd"; 
 var a = this.split(x); 
 var y = parseInt(a[p.indexOf("y")]); 
 //remember to change this next century ;) 
 if(y.toString().length <= 2) y += 2000; 
 if(isNaN(y)) y = new Date().getFullYear(); 
 var m = parseInt(a[p.indexOf("m")]) - 1; 
 var d = parseInt(a[p.indexOf("d")]); 
 if(isNaN(d)) d = 1; 
 return new Date(y, m, d); 
} 
/** 
* Format the date
* @param   d the delimiter 
* @param   p the pattern of your date 
*/ 
Date.prototype.format = function(style) { 
 var o = { 
   "M+" : this.getMonth() + 1, //month 
   "d+" : this.getDate(),      //day 
   "h+" : this.getHours(),     //hour 
   "m+" : this.getMinutes(),   //minute 
   "s+" : this.getSeconds(),   //second 
   "w+" : "天一二三四五六".charAt(this.getDay()),   //week 
   "q+" : Math.floor((this.getMonth() + 3) / 3),  //quarter 
   "S"  : this.getMilliseconds() //millisecond 
 } 
 if(/(y+)/.test(style)) { 
   style = style.replace(RegExp.$1, 
   (this.getFullYear() + "").substr(4 - RegExp.$1.length)); 
 } 
 for(var k in o){ 
   if(new RegExp("("+ k +")").test(style)){ 
     style = style.replace(RegExp.$1, 
       RegExp.$1.length == 1 ? o[k] : 
       ("00" + o[k]).substr(("" + o[k]).length)); 
   } 
 } 
 return style; 
}; 
/** 
* Calendar class
* @param   beginYear 1990 
* @param   endYear  񎧚 
* @param   lang     ŀ(中文)|1(英语) 可自由扩充 
* @param   dateFormatStyle  "yyyy-MM-dd"; 
* @version 2007-03-16 
* @update 
*/ 
function Calendar(lang,beginYear,endYear,dateFormatStyle) { 
 this.beginYear = 1990; 
 this.endYear = 2010; 
 this.lang = 0;  //0(中文) | 1(英文) 
 this.dateFormatStyle = "yyyy-MM-dd"; 
 if (beginYear != null && endYear != null){ 
   this.beginYear = beginYear; 
   this.endYear = endYear; 
 } 
 if (lang != null){ 
   this.lang = lang 
 } 
 if (dateFormatStyle != null){ 
   this.dateFormatStyle = dateFormatStyle 
 } 
 this.dateControl = null; 
 this.panel = this.getElementById("calendarPanel"); 
 this.form  = null; 
 this.date = new Date(); 
 this.year = this.date.getFullYear(); 
 this.month = this.date.getMonth(); 

 this.colors = { 
 "cur_word"      : "#FFFFFF",  //当日日期文字颜色 
 "cur_bg"        : "#00FF00",  //当日日期单元格背影色 
 "sun_word"      : "#FF0000",  //星期天文字颜色 
 "sat_word"      : "#0000FF",  //星期六文字颜色 
 "td_word_light" : "#000000",  //单元格文字颜色 
 "td_word_dark"  : "#CCCCCC",  //单元格文字暗色 
 "td_bg_out"     : "#FFFFFF",  //单元格背影色 
 "td_bg_over"    : "#FFCC00",  //单元格背影色 
 "tr_word"       : "#FFFFFF",  //日历头文字颜色 
 "tr_bg"         : "#FF6600",  //日历头背影色 
 "input_border"  : "#CCCCCC",  //input控件的边框颜色 
 "input_bg"      : "#EFEFEF"   //input控件的背影色 
 } 
 this.draw(); 
 this.bindYear(); 
 this.bindMonth(); 
 this.changeSelect(); 
 this.bindData(); 
} 
/** 
* 日历类属性（语言包，可自由扩展） 
*/ 
Calendar.language = { 
 "year"   : [[""], [""]], 
 "months" : [["一月","二月","三月","四月","五月","六月","七月","八月","九月","十月","十一月","十二月"], 
        ["JAN","FEB","MAR","APR","MAY","JUN","JUL","AUG","SEP","OCT","NOV","DEC"] 
       ], 
 "weeks"  : [["日","一","二","三","四","五","六"], 
        ["SUN","MON","TUR","WED","THU","FRI","SAT"] 
       ], 
 "clear"  : [["清空"], ["CLS"]], 
 "today"  : [["今天"], ["TODAY"]], 
 "close"  : [["关闭"], ["CLOSE"]] 
} 
Calendar.prototype.draw = function() { 
 calendar = this; 
 var mvAry = []; 
 mvAry[mvAry.length]  = '  <form name="calendarForm" style="margin: 0px;">'; 
 mvAry[mvAry.length]  = '    <table width="100%" border="0" cellpadding="0" cellspacing="0">'; 
 mvAry[mvAry.length]  = '      <tr>'; 
 mvAry[mvAry.length]  = '        <th align="left" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="prevMonth" type="button" id="prevMonth" value="<" /></th>'; 
 mvAry[mvAry.length]  = '        <th align="center" width="98%" nowrap="nowrap"><select name="calendarYear" id="calendarYear" style="font-size:12px;width:50%;"></select><select name="calendarMonth" id="calendarMonth" style="font-size:12px;width:50%;"></select></th>'; 
 mvAry[mvAry.length]  = '        <th align="right" width="1%"><input style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:16px;height:20px;" name="nextMonth" type="button" id="nextMonth" value=">" /></th>'; 
 mvAry[mvAry.length]  = '      </tr>'; 
 mvAry[mvAry.length]  = '    </table>'; 
 mvAry[mvAry.length]  = '    <table id="calendarTable" width="100%" style="border:0px solid #CCCCCC;background-color:#DDD" border="0" cellpadding="3" cellspacing="1">'; 
 mvAry[mvAry.length]  = '      <tr>'; 
 for(var i = 0; i < 7; i++) { 
   mvAry[mvAry.length]  = '      <th style="font-weight:normal;background-color:' + calendar.colors["tr_bg"] + ';color:' + calendar.colors["tr_word"] + ';">' + Calendar.language["weeks"][this.lang][i] + '</th>'; 
 } 
 mvAry[mvAry.length]  = '      </tr>'; 
 for(var i = 0; i < 6;i++){ 
   mvAry[mvAry.length]  = '    <tr align="center">'; 
   for(var j = 0; j < 7; j++) { 
     if (j == 0){ 
       mvAry[mvAry.length]  = '  <td style="cursor:default;color:' + calendar.colors["sun_word"] + ';"></td>'; 
     } else if(j == 6) { 
       mvAry[mvAry.length]  = '  <td style="cursor:default;color:' + calendar.colors["sat_word"] + ';"></td>'; 
     } else { 
       mvAry[mvAry.length]  = '  <td style="cursor:default;"></td>'; 
     } 
   } 
   mvAry[mvAry.length]  = '    </tr>'; 
 } 
 mvAry[mvAry.length]  = '      <tr style="background-color:' + calendar.colors["input_bg"] + ';">'; 
 mvAry[mvAry.length]  = '        <th colspan="2"><input name="calendarClear" type="button" id="calendarClear" value="' + Calendar.language["clear"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>'; 
 mvAry[mvAry.length]  = '        <th colspan="3"><input name="calendarToday" type="button" id="calendarToday" value="' + Calendar.language["today"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>'; 
 mvAry[mvAry.length]  = '        <th colspan="2"><input name="calendarClose" type="button" id="calendarClose" value="' + Calendar.language["close"][this.lang] + '" style="border: 1px solid ' + calendar.colors["input_border"] + ';background-color:' + calendar.colors["input_bg"] + ';width:100%;height:20px;font-size:12px;"/></th>'; 
 mvAry[mvAry.length]  = '      </tr>'; 
 mvAry[mvAry.length]  = '    </table>'; 
 mvAry[mvAry.length]  = '  </form>'; 
 this.panel.innerHTML = mvAry.join(""); 
 this.form = document.forms["calendarForm"]; 
 this.form.prevMonth.onclick = function () {calendar.goPrevMonth(this);} 
 this.form.nextMonth.onclick = function () {calendar.goNextMonth(this);} 
 this.form.calendarClear.onclick = function () {calendar.dateControl.value = "";calendar.hide();} 
 this.form.calendarClose.onclick = function () {calendar.hide();} 
 this.form.calendarYear.onchange = function () {calendar.update(this);} 
 this.form.calendarMonth.onchange = function () {calendar.update(this);} 
 this.form.calendarToday.onclick = function () { 
   var today = new Date(); 
   calendar.date = today; 
   calendar.year = today.getFullYear(); 
   calendar.month = today.getMonth(); 
   calendar.changeSelect(); 
   calendar.bindData(); 
   calendar.dateControl.value = today.format(calendar.dateFormatStyle); 
   calendar.hide(); 
 } 
} 
//年份下拉框绑定数据 
Calendar.prototype.bindYear = function() { 
 var cy = this.form.calendarYear; 
 cy.length = 0; 
 for (var i = this.beginYear; i <= this.endYear; i++){ 
   cy.options[cy.length] = new Option(i + Calendar.language["year"][this.lang], i); 
 } 
} 
//月份下拉框绑定数据 
Calendar.prototype.bindMonth = function() { 
 var cm = this.form.calendarMonth; 
 cm.length = 0; 
 for (var i = 0; i < 12; i++){ 
   cm.options[cm.length] = new Option(Calendar.language["months"][this.lang][i], i); 
 } 
} 
//向前一月 
Calendar.prototype.goPrevMonth = function(e){ 
 if (this.year == this.beginYear && this.month == 0){return;} 
 this.month--; 
 if (this.month == -1) { 
   this.year--; 
   this.month = 11; 
 } 
 this.date = new Date(this.year, this.month, 1); 
 this.changeSelect(); 
 this.bindData(); 
} 
//向后一月 
Calendar.prototype.goNextMonth = function(e){ 
 if (this.year == this.endYear && this.month == 11){return;} 
 this.month++; 
 if (this.month == 12) { 
   this.year++; 
   this.month = 0; 
 } 
 this.date = new Date(this.year, this.month, 1); 
 this.changeSelect(); 
 this.bindData(); 
} 
//改变SELECT选中状态 
Calendar.prototype.changeSelect = function() { 
 var cy = this.form.calendarYear; 
 var cm = this.form.calendarMonth; 
 for (var i= 0; i < cy.length; i++){ 
   if (cy.options[i].value == this.date.getFullYear()){ 
     cy[i].selected = true; 
     break; 
   } 
 } 
 for (var i= 0; i < cm.length; i++){ 
   if (cm.options[i].value == this.date.getMonth()){ 
     cm[i].selected = true; 
     break; 
   } 
 } 
} 
//更新年、月 
Calendar.prototype.update = function (e){ 
 this.year  = e.form.calendarYear.options[e.form.calendarYear.selectedIndex].value; 
 this.month = e.form.calendarMonth.options[e.form.calendarMonth.selectedIndex].value; 
 this.date = new Date(this.year, this.month, 1); 
 this.changeSelect(); 
 this.bindData(); 
} 
//绑定数据到月视图 
Calendar.prototype.bindData = function () { 
 var calendar = this; 
 var dateArray = this.getMonthViewArray(this.date.getYear(), this.date.getMonth()); 
 var tds = this.getElementById("calendarTable").getElementsByTagName("td"); 
 for(var i = 0; i < tds.length; i++) { 
 //tds[i].style.color = calendar.colors["td_word_light"]; 
 tds[i].style.backgroundColor = calendar.colors["td_bg_out"]; 
   tds[i].onclick = function () {return;} 
   tds[i].onmouseover = function () {return;} 
   tds[i].onmouseout = function () {return;} 
   if (i > dateArray.length - 1) break; 
   tds[i].innerHTML = dateArray[i]; 
   if (dateArray[i] != " "){ 
     tds[i].onclick = function () { 
       if (calendar.dateControl != null){ 
         calendar.dateControl.value = new Date(calendar.date.getFullYear(), 
                                               calendar.date.getMonth(), 
                                               this.innerHTML).format(calendar.dateFormatStyle); 
       } 
       calendar.hide(); 
     } 
     tds[i].onmouseover = function () { 
       this.style.backgroundColor = calendar.colors["td_bg_over"]; 
     } 
     tds[i].onmouseout = function () { 
       this.style.backgroundColor = calendar.colors["td_bg_out"]; 
     } 
     if (new Date().format(calendar.dateFormatStyle) == 
         new Date(calendar.date.getFullYear(), 
                  calendar.date.getMonth(), 
                  dateArray[i]).format(calendar.dateFormatStyle)) { 
       //tds[i].style.color = calendar.colors["cur_word"]; 
       tds[i].style.backgroundColor = calendar.colors["cur_bg"]; 
       tds[i].onmouseover = function () { 
         this.style.backgroundColor = calendar.colors["td_bg_over"]; 
       } 
       tds[i].onmouseout = function () { 
         this.style.backgroundColor = calendar.colors["cur_bg"]; 
       } 
     }//end if 
   } 
 } 
} 
//根据年、月得到月视图数据(数组形式) 
Calendar.prototype.getMonthViewArray = function (y, m) { 
 var mvArray = []; 
 var dayOfFirstDay = new Date(y, m, 1).getDay(); 
 var daysOfMonth = new Date(y, m + 1, 0).getDate(); 
 for (var i = 0; i < 42; i++) { 
   mvArray[i] = " "; 
 } 
 for (var i = 0; i < daysOfMonth; i++){ 
   mvArray[i + dayOfFirstDay] = i + 1; 
 } 
 return mvArray; 
} 
//扩展 document.getElementById(id) 多浏览器兼容性 
Calendar.prototype.getElementById = function(id){ 
 if (typeof(id) != "string" || id == "") return null; 
 if (document.getElementById) return document.getElementById(id); 
 if (document.all) return document.all(id); 
 try {return eval(id);} catch(e){ return null;} 
} 
//扩展 object.getElementsByTagName(tagName) 
Calendar.prototype.getElementsByTagName = function(object, tagName){ 
 if (document.getElementsByTagName) return document.getElementsByTagName(tagName); 
 if (document.all) return document.all.tags(tagName); 
} 
//取得HTML控件绝对位置 
Calendar.prototype.getAbsPoint = function (e){ 
 var x = e.offsetLeft; 
 var y = e.offsetTop; 
 while(e = e.offsetParent){ 
   x += e.offsetLeft; 
   y += e.offsetTop; 
 } 
 return {"x": x, "y": y}; 
} 
//显示日历 
Calendar.prototype.show = function (dateControl, popControl) { 
 if (dateControl == null){ 
   throw new Error("arguments[0] is necessary") 
 } 
 this.dateControl = dateControl; 
 if (dateControl.value.length > 0){ 
 this.date = new Date(dateControl.value.toDate()); 
 this.year = this.date.getFullYear(); 
 this.month = this.date.getMonth(); 
   this.changeSelect(); 
   this.bindData(); 
 } 
 if (popControl == null){ 
   popControl = dateControl; 
 } 
 var xy = this.getAbsPoint(popControl); 
 this.panel.parentNode.style.left = xy.x + "px"; 
 this.panel.parentNode.style.top = (xy.y + dateControl.offsetHeight) + "px"; 
 this.panel.parentNode.style.visibility = "visible"; 
} 
//隐藏日历 
Calendar.prototype.hide = function() { 
 this.panel.parentNode.style.visibility = "hidden"; 
} 

var html = '<div style="\position:absolute;visibility:hidden;z-index:9999;background-color:#fff;border:2px solid #ccc;width:225px;font-size:12px;\"><iframe style="position:absolute;width:100%;height:199px;z-index:-1;border:none"></iframe>\<div id="calendarPanel"></div>\</div>'; 
document.write(html); 

